The cliffhanger effect leaves you literally hanging until you find the end of the story. But why is it so effective?
You need to buy one item. There are thousands to choose from. Is choice overload a real phenomenon, and does a huge range help or hinder?
The more things you need to keep in mind at any one time, the higher the cognitive load. And there are tests that stretch this to the max.
An online fundraising campaign hosted by an attractive female will cause men to try to top each other’s contribution. It’s called competitive helping.